Parameterized tests Junit using the file entry

I have a query about using parameterized tests for my unit testing of my APIs. Now instead of building an arraylist like

Arrays.asList(new Object[]{
   {1},{2},{3}
});

I want to read lines in the file one by one split them space and fill them in the array. This way everything would be generalized. Can anyone suggest me any such method with example?

Also is there a way that I could be testing without declaring various arguments as the private members and initializing them in the constructor of the test unit?

EDIT: Code as asked by Duncan

@RunWith(Parameterized.class)
public class JunitTest2 {

    SqlSession session;
    Integer num;
    Boolean expectedResult;
    static BufferedInputStream buffer = null;

    public JunitTest2(Integer num, Boolean expected){
        this.num = num;
        this.expectedResult = expected;
    }

    @Before
    public void setup() throws IOException{
        session = SessionUtil.getSqlSessionFactory(0).openSession();
        SessionUtil.setSqlSession(session);
        buffer = new BufferedInputStream(getClass().getResourceAsStream("input.txt"));
        System.out.println("SETUP!");
    }

    @Test
    public void test() {
        assertEquals(expectedResult, num > 0);
        System.out.println("TESTED!");
    }

    @Parameterized.Parameters
    public static Collection getNum() throws IOException{
        //I want my code to read input.txt line by line and feed the input in an arraylist so that it returns an equivalent of the code below

        return Arrays.asList(new Object[][]{
            {2, true},
            {3, true},
            {-1, false}
        });
    }
    @After
    public void tearDown() throws IOException{
        session.close();
        buffer.close();
        System.out.println("TEARDOWN!");
    }
}

Also my input.txt will be as follows:

2 true
3 true
-1 false

@RunWith(JUnitParamsRunner.class)
public class FileParamsTest {

    @Test
    @FileParameters("src/test/resources/test.csv")
    public void loadParamsFromFileWithIdentityMapper(int age, String name) {
        assertTrue(age > 0);
    }

}

JUnitParams has support for loading the data from a CSV file.

CSV File will contain

1,true
2,false